Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887441 | Quickly openable combination padlock of push-button type | — | 1989-12-19 |
| 4884419 | Interlockable lock | — | 1989-12-05 |
| 4866959 | Pusher-type combination padlock | — | 1989-09-19 |
| 4852372 | Randomly engageable combination locking device | — | 1989-08-01 |
| 4803856 | Planarly-operating combination padlock | — | 1989-02-14 |